R
Rocky Mountain
In production2018–

Growler

mtb
01

Origin

The Growler arrived in 2018 to stake Rocky Mountain's claim on the modern 29" trail hardtail movement — a category defined by wide tires, slack angles, and frame geometry borrowed from full-suspension bikes. Rather than building a do-everything compromise, Rocky Mountain engineered the Growler around a single idea: 29x2.6" tires that roll fast and grip hard. Internal cable routing, Boost spacing, and dropper compatibility made it feel like a modern trail rig, not a budget entry point.

02

Specifications

Frame
FORM 6061 aluminium; Boost rear spacing (141mm); fully internal cable routing; dropper-post compatible; available in S/M/L/XL
Weight
kg
Drivetrain
Growler 50: SRAM GX Eagle 12-speed, 30T chainring, 11-50T cassette; lower builds use Shimano Deore or microSHIFT
Brakes
Growler 50: Shimano MT420 4-piston front / MT400 2-piston rear hydraulic disc; lower builds use mechanical or entry-level hydraulic
Wheels
29"; max tire 29x2.6"
03

The verdict

+Strengths
  • Wide 29x2.6" tires deliver trail-hardtail comfort and grip
  • Slack 64° head angle gives confident, modern feel — not an XC bike
  • Fully internal routing and Boost spacing give it a premium, future-proof build quality
Weaknesses
  • Aluminium-only limits weight savings versus carbon competitors
  • No rear suspension — chunky terrain punishes the body on longer rides
  • SR Suntour forks on entry builds limit performance ceiling
04

Tags

05

Related models

Want one?

Find this bike on the marketplace, or compare notes with riders already on one.